UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1 (b), (c) AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO 13d-2

Synchronoss Technologies, Inc.

(Name of Issuer)

(Title of Class of Securities)

(CUSIP Number)

(Date of Event Which Requires Filing of This Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

	o		Rule 13d-1(b)
	þ		Rule 13d-1(c)
	o		Rule 13d-1(d)

*The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

 

 

CUSIP NO.		87157B 10 3	13 G	Page		2		of		17 Pages

(1) This Schedule 13G is filed by Institutional Venture Partners XI, L.P. (“IVP XI”), Institutional Venture Partners XI GmbH & Co. Beteiligungs KG (“IVP XI KG”), Institutional Venture Management XI, LLC (“IVM XI”), Institutional Venture Partners XII, L.P. (“IVP XII”), Institutional Venture Management XII, LLC (“IVM XII”), Todd C. Chaffee (“Chaffee”), Reid W. Dennis (“Dennis”), Norman A. Fogelsong (“Fogelsong”), Stephen J. Harrick (“Harrick”), J. Sanford Miller (“Miller”) and Dennis B. Phelps (“Phelps” together with IVP XI, IVP XI KG, IVM XI, IVP XII, IVM XII, Chaffee, Dennis, Fogelsong, Harrick and Miller, collectively, the “Reporting Persons”). The Reporting Persons expressly disclaim status as a “group” for purposes of this Schedule 13G.

(2) Includes 1,982,600 shares held by IVP XI; 317,400 shares held by IVP XI KG; and 989,770 shares held by IVP XII. IVM XI serves as the sole general partner of IVP XI and the sole managing limited partner of IVP XI KG, and has sole voting and investment control over the respective shares owned by IVP XI and IVP XI KG, and may be deemed to own beneficially the shares held by IVP XI and IVP XI KG. IVM XI however owns no securities of the Issuer directly. IVM XII serves as the sole general partner of IVP XII, and has sole voting and investment control over the shares owned by IVP XII, and may be deemed to own beneficially the shares held by IVP XII. IVM XII however owns no securities of the Issuer directly. Chaffee, Dennis, Fogelsong, Harrick, Miller and Phelps are Managing Directors of IVM XI and share voting and dispositive power over the shares held by IVP XI and IVP XI KG, and may be deemed to own beneficially the shares held by IVP XI and IVP XI KG, however, they own no securities of the Issuer directly and they disclaim beneficial ownership of the shares held by IVP XI and IVP XI KG, except to the extent of their respective pecuniary interests therein. Chaffee, Fogelsong, Harrick, Miller and Phelps are Managing Directors of IVM XII and share voting and dispositive power over the shares held by IVP XII, and may be deemed to own beneficially the shares held by IVP XII, however, they own no securities of the Issuer directly and they disclaim beneficial ownership of the shares held by IVP XII, except to the extent of their respective pecuniary interests therein.

(3) This percentage is calculated based upon 32,706,972 shares of the Common Stock outstanding as of February 15, 2008 in the Issuer’s most recently filed 10-K as filed with the Securities and Exchange Commission on February 29, 2008.

CUSIP NO.		87157B 10 3	13 G	Page		3		of		17 Pages

(1) This Schedule 13G is filed by the Reporting Persons. The Reporting Persons expressly disclaim status as a “group” for purposes of this Schedule 13G.

(2) Includes 1,982,600 shares held by IVP XI; 317,400 shares held by IVP XI KG; and 989,770 shares held by IVP XII. IVM XI serves as the sole general partner of IVP XI and the sole managing limited partner of IVP XI KG, and has sole voting and investment control over the respective shares owned by IVP XI and IVP XI KG, and may be deemed to own beneficially the shares held by IVP XI and IVP XI KG. IVM XI however owns no securities of the Issuer directly. IVM XII serves as the sole general partner of IVP XII, and has sole voting and investment control over the shares owned by IVP XII, and may be deemed to own beneficially the shares held by IVP XII. IVM XII however owns no securities of the Issuer directly. Chaffee, Dennis, Fogelsong, Harrick, Miller and Phelps are Managing Directors of IVM XI and share voting and dispositive power over the shares held by IVP XI and IVP XI KG, and may be deemed to own beneficially the shares held by IVP XI and IVP XI KG, however, they own no securities of the Issuer directly and they disclaim beneficial ownership of the shares held by IVP XI and IVP XI KG, except to the extent of their respective pecuniary interests therein. Chaffee, Fogelsong, Harrick, Miller and Phelps are Managing Directors of IVM XII and share voting and dispositive power over the shares held by IVP XII, and may be deemed to own beneficially the shares held by IVP XII, however, they own no securities of the Issuer directly and they disclaim beneficial ownership of the shares held by IVP XII, except to the extent of their respective pecuniary interests therein.

(3) This percentage is calculated based upon 32,706,972 shares of the Common Stock outstanding as of February 15, 2008 in the Issuer’s most recently filed 10-K as filed with the Securities and Exchange Commission on February 29, 2008.

CUSIP NO.		87157B 10 3	13 G	Page		4		of		17 Pages

(1) This Schedule 13G is filed by the Reporting Persons. The Reporting Persons expressly disclaim status as a “group” for purposes of this Schedule 13G.

(2) Includes 1,982,600 shares held by IVP XI; 317,400 shares held by IVP XI KG; and 989,770 shares held by IVP XII. IVM XI serves as the sole general partner of IVP XI and the sole managing limited partner of IVP XI KG, and has sole voting and investment control over the shares owned by IVP XI and IVP XI KG, and may be deemed to own beneficially the respective shares held by IVP XI and IVP XI KG. IVM XI however owns no securities of the Issuer directly. IVM XII serves as the sole general partner of IVP XII, and has sole voting and investment control over the shares owned by IVP XII, and may be deemed to own beneficially the shares held by IVP XII. IVM XII however owns no securities of the Issuer directly. Chaffee, Dennis, Fogelsong, Harrick, Miller and Phelps are Managing Directors of IVM XI and share voting and dispositive power over the shares held by IVP XI and IVP XI KG, and may be deemed to own beneficially the shares held by IVP XI and IVP XI KG, however, they own no securities of the Issuer directly and they disclaim beneficial ownership of the shares held by IVP XI and IVP XI KG, except to the extent of their respective pecuniary interests therein. Chaffee, Fogelsong, Harrick, Miller and Phelps are Managing Directors of IVM XII and share voting and dispositive power over the shares held by IVP XII, and may be deemed to own beneficially the shares held by IVP XII, however, they own no securities of the Issuer directly and they disclaim beneficial ownership of the shares held by IVP XII, except to the extent of their respective pecuniary interests therein.

(3) This percentage is calculated based upon 32,706,972 shares of the Common Stock outstanding as of February 15, 2008 in the Issuer’s most recently filed 10-K as filed with the Securities and Exchange Commission on February 29, 2008.

CUSIP NO.		87157B 10 3	13 G	Page		5		of		17 Pages

(1) This Schedule 13G is filed by the Reporting Persons. The Reporting Persons expressly disclaim status as a “group” for purposes of this Schedule 13G.

(2) Includes 1,982,600 shares held by IVP XI; 317,400 shares held by IVP XI KG; and 989,770 shares held by IVP XII. IVM XI serves as the sole general partner of IVP XI and the sole managing limited partner of IVP XI KG, and has sole voting and investment control over the respective shares owned by IVP XI and IVP XI KG, and may be deemed to own beneficially the shares held by IVP XI and IVP XI KG. IVM XI however owns no securities of the Issuer directly. IVM XII serves as the sole general partner of IVP XII, and has sole voting and investment control over the shares owned by IVP XII, and may be deemed to own beneficially the shares held by IVP XII. IVM XII however owns no securities of the Issuer directly. Chaffee, Dennis, Fogelsong, Harrick, Miller and Phelps are Managing Directors of IVM XI and share voting and dispositive power over the shares held by IVP XI and IVP XI KG, and may be deemed to own beneficially the shares held by IVP XI and IVP XI KG, however, they own no securities of the Issuer directly and they disclaim beneficial ownership of the shares held by IVP XI and IVP XI KG, except to the extent of their respective pecuniary interests therein. Chaffee, Fogelsong, Harrick, Miller and Phelps are Managing Directors of IVM XII and share voting and dispositive power over the shares held by IVP XII, and may be deemed to own beneficially the shares held by IVP XII, however, they own no securities of the Issuer directly and they disclaim beneficial ownership of the shares held by IVP XII, except to the extent of their respective pecuniary interests therein.

(3) This percentage is calculated based upon 32,706,972 shares of the Common Stock outstanding as of February 15, 2008 in the Issuer’s most recently filed 10-K as filed with the Securities and Exchange Commission on February 29, 2008.

CUSIP NO.		87157B 10 3	13 G	Page		6		of		17 Pages

(1) This Schedule 13G is filed by the Reporting Persons. The Reporting Persons expressly disclaim status as a “group” for purposes of this Schedule 13G.

(2) Includes 1,982,600 shares held by IVP XI; 317,400 shares held by IVP XI KG; and 989,770 shares held by IVP XII. IVM XI serves as the sole general partner of IVP XI and the sole managing limited partner of IVP XI KG, and has sole voting and investment control over the respective shares owned by IVP XI and IVP XI KG, and may be deemed to own beneficially the shares held by IVP XI and IVP XI KG. IVM XI however owns no securities of the Issuer directly. IVM XII serves as the sole general partner of IVP XII, and has sole voting and investment control over the shares owned by IVP XII, and may be deemed to own beneficially the shares held by IVP XII. IVM XII however owns no securities of the Issuer directly. Chaffee, Dennis, Fogelsong, Harrick, Miller and Phelps are Managing Directors of IVM XI and share voting and dispositive power over the shares held by IVP XI and IVP XI KG, and may be deemed to own beneficially the shares held by IVP XI and IVP XI KG, however, they own no securities of the Issuer directly and they disclaim beneficial ownership of the shares held by IVP XI and IVP XI KG, except to the extent of their respective pecuniary interests therein. Chaffee, Fogelsong, Harrick, Miller and Phelps are Managing Directors of IVM XII and share voting and dispositive power over the shares held by IVP XII, and may be deemed to own beneficially the shares held by IVP XII, however, they own no securities of the Issuer directly and they disclaim beneficial ownership of the shares held by IVP XII, except to the extent of their respective pecuniary interests therein.

(3) This percentage is calculated based upon 32,706,972 shares of the Common Stock outstanding as of February 15, 2008 in the Issuer’s most recently filed 10-K as filed with the Securities and Exchange Commission on February 29, 2008.

CUSIP NO.		87157B 10 3	13 G	Page		7		of		17 Pages

(1) This Schedule 13G is filed by the Reporting Persons. The Reporting Persons expressly disclaim status as a “group” for purposes of this Schedule 13G.

(2) Includes 1,982,600 shares held by IVP XI; 317,400 shares held by IVP XI KG; and 989,770 shares held by IVP XII. IVM XI serves as the sole general partner of IVP XI and the sole managing limited partner of IVP XI KG, and has sole voting and investment control over the respective shares owned by IVP XI and IVP XI KG, and may be deemed to own beneficially the shares held by IVP XI and IVP XI KG. IVM XI however owns no securities of the Issuer directly. IVM XII serves as the sole general partner of IVP XII, and has sole voting and investment control over the shares owned by IVP XII, and may be deemed to own beneficially the shares held by IVP XII. IVM XII however owns no securities of the Issuer directly. Chaffee, Dennis, Fogelsong, Harrick, Miller and Phelps are Managing Directors of IVM XI and share voting and dispositive power over the shares held by IVP XI and IVP XI KG, and may be deemed to own beneficially the shares held by IVP XI and IVP XI KG, however, they own no securities of the Issuer directly and they disclaim beneficial ownership of the shares held by IVP XI and IVP XI KG, except to the extent of their respective pecuniary interests therein. Chaffee, Fogelsong, Harrick, Miller and Phelps are Managing Directors of IVM XII and share voting and dispositive power over the shares held by IVP XII, and may be deemed to own beneficially the shares held by IVP XII, however, they own no securities of the Issuer directly and they disclaim beneficial ownership of the shares held by IVP XII, except to the extent of their respective pecuniary interests therein.

(3) This percentage is calculated based upon 32,706,972 shares of the Common Stock outstanding as of February 15, 2008 in the Issuer’s most recently filed 10-K as filed with the Securities and Exchange Commission on February 29, 2008.

CUSIP NO.		87157B 10 3	13 G	Page		8		of		17 Pages

(1) This Schedule 13G is filed by the Reporting Persons. The Reporting Persons expressly disclaim status as a “group” for purposes of this Schedule 13G.

(2) Includes 1,982,600 shares held by IVP XI; 317,400 shares held by IVP XI KG; and 989,770 shares held by IVP XII. IVM XI serves as the sole general partner of IVP XI and the sole managing limited partner of IVP XI KG, and has sole voting and investment control over the respective shares owned by IVP XI and IVP XI KG, and may be deemed to own beneficially the shares held by IVP XI and IVP XI KG. IVM XI however owns no securities of the Issuer directly. IVM XII serves as the sole general partner of IVP XII, and has sole voting and investment control over the shares owned by IVP XII, and may be deemed to own beneficially the shares held by IVP XII. IVM XII however owns no securities of the Issuer directly. Chaffee, Dennis, Fogelsong, Harrick, Miller and Phelps are Managing Directors of IVM XI and share voting and dispositive power over the shares held by IVP XI and IVP XI KG, and may be deemed to own beneficially the shares held by IVP XI and IVP XI KG, however, they own no securities of the Issuer directly and they disclaim beneficial ownership of the shares held by IVP XI and IVP XI KG, except to the extent of their respective pecuniary interests therein. Chaffee, Fogelsong, Harrick, Miller and Phelps are Managing Directors of IVM XII and share voting and dispositive power over the shares held by IVP XII, and may be deemed to own beneficially the shares held by IVP XII, however, they own no securities of the Issuer directly and they disclaim beneficial ownership of the shares held by IVP XII, except to the extent of their respective pecuniary interests therein.

(3) This percentage is calculated based upon 32,706,972 shares of the Common Stock outstanding as of February 15, 2008 in the Issuer’s most recently filed 10-K as filed with the Securities and Exchange Commission on February 29, 2008.

CUSIP NO.		87157B 10 3	13 G	Page		9		of		17 Pages

(1) This Schedule 13G is filed by the Reporting Persons. The Reporting Persons expressly disclaim status as a “group” for purposes of this Schedule 13G.

(2) Includes 1,982,600 shares held by IVP XI; 317,400 shares held by IVP XI KG; and 989,770 shares held by IVP XII. IVM XI serves as the sole general partner of IVP XI and the sole managing limited partner of IVP XI KG, and has sole voting and investment control over the respective shares owned by IVP XI and IVP XI KG, and may be deemed to own beneficially the shares held by IVP XI and IVP XI KG. IVM XI however owns no securities of the Issuer directly. IVM XII serves as the sole general partner of IVP XII, and has sole voting and investment control over the shares owned by IVP XII, and may be deemed to own beneficially the shares held by IVP XII. IVM XII however owns no securities of the Issuer directly. Chaffee, Dennis, Fogelsong, Harrick, Miller and Phelps are Managing Directors of IVM XI and share voting and dispositive power over the shares held by IVP XI and IVP XI KG, and may be deemed to own beneficially the shares held by IVP XI and IVP XI KG, however, they own no securities of the Issuer directly and they disclaim beneficial ownership of the shares held by IVP XI and IVP XI KG, except to the extent of their respective pecuniary interests therein. Chaffee, Fogelsong, Harrick, Miller and Phelps are Managing Directors of IVM XII and share voting and dispositive power over the shares held by IVP XII, and may be deemed to own beneficially the shares held by IVP XII, however, they own no securities of the Issuer directly and they disclaim beneficial ownership of the shares held by IVP XII, except to the extent of their respective pecuniary interests therein.

(3) This percentage is calculated based upon 32,706,972 shares of the Common Stock outstanding as of February 15, 2008 in the Issuer’s most recently filed 10-K as filed with the Securities and Exchange Commission on February 29, 2008.

CUSIP NO.		87157B 10 3	13 G	Page		10		of		17 Pages

(1) This Schedule 13G is filed by the Reporting Persons. The Reporting Persons expressly disclaim status as a “group” for purposes of this Schedule 13G.

(2) Includes 1,982,600 shares held by IVP XI; 317,400 shares held by IVP XI KG; and 989,770 shares held by IVP XII. IVM XI serves as the sole general partner of IVP XI and the sole managing limited partner of IVP XI KG, and has sole voting and investment control over the respective shares owned by IVP XI and IVP XI KG, and may be deemed to own beneficially the shares held by IVP XI and IVP XI KG. IVM XI however owns no securities of the Issuer directly. IVM XII serves as the sole general partner of IVP XII, and has sole voting and investment control over the shares owned by IVP XII, and may be deemed to own beneficially the shares held by IVP XII. IVM XII however owns no securities of the Issuer directly. Chaffee, Dennis, Fogelsong, Harrick, Miller and Phelps are Managing Directors of IVM XI and share voting and dispositive power over the shares held by IVP XI and IVP XI KG, and may be deemed to own beneficially the shares held by IVP XI and IVP XI KG, however, they own no securities of the Issuer directly and they disclaim beneficial ownership of the shares held by IVP XI and IVP XI KG, except to the extent of their respective pecuniary interests therein. Chaffee, Fogelsong, Harrick, Miller and Phelps are Managing Directors of IVM XII and share voting and dispositive power over the shares held by IVP XII, and may be deemed to own beneficially the shares held by IVP XII, however, they own no securities of the Issuer directly and they disclaim beneficial ownership of the shares held by IVP XII, except to the extent of their respective pecuniary interests therein.

(3) This percentage is calculated based upon 32,706,972 shares of the Common Stock outstanding as of February 15, 2008 in the Issuer’s most recently filed 10-K as filed with the Securities and Exchange Commission on February 29, 2008.

CUSIP NO.		87157B 10 3	13 G	Page		11		of		17 Pages

(1) This Schedule 13G is filed by the Reporting Persons. The Reporting Persons expressly disclaim status as a “group” for purposes of this Schedule 13G.

(2) Includes 1,982,600 shares held by IVP XI; 317,400 shares held by IVP XI KG; and 989,770 shares held by IVP XII. IVM XI serves as the sole general partner of IVP XI and the sole managing limited partner of IVP XI KG, and has sole voting and investment control over the respective shares owned by IVP XI and IVP XI KG, and may be deemed to own beneficially the shares held by IVP XI and IVP XI KG. IVM XI however owns no securities of the Issuer directly. IVM XII serves as the sole general partner of IVP XII, and has sole voting and investment control over the shares owned by IVP XII, and may be deemed to own beneficially the shares held by IVP XII. IVM XII however owns no securities of the Issuer directly. Chaffee, Dennis, Fogelsong, Harrick, Miller and Phelps are Managing Directors of IVM XI and share voting and dispositive power over the shares held by IVP XI and IVP XI KG, and may be deemed to own beneficially the shares held by IVP XI and IVP XI KG, however, they own no securities of the Issuer directly and they disclaim beneficial ownership of the shares held by IVP XI and IVP XI KG, except to the extent of their respective pecuniary interests therein. Chaffee, Fogelsong, Harrick, Miller and Phelps are Managing Directors of IVM XII and share voting and dispositive power over the shares held by IVP XII, and may be deemed to own beneficially the shares held by IVP XII, however, they own no securities of the Issuer directly and they disclaim beneficial ownership of the shares held by IVP XII, except to the extent of their respective pecuniary interests therein.

(3) This percentage is calculated based upon 32,706,972 shares of the Common Stock outstanding as of February 15, 2008 in the Issuer’s most recently filed 10-K as filed with the Securities and Exchange Commission on February 29, 2008.

CUSIP NO.		87157B 10 3	13 G	Page		12		of		17 Pages

(1) This Schedule 13G is filed by the Reporting Persons. The Reporting Persons expressly disclaim status as a “group” for purposes of this Schedule 13G.

(2) Includes 1,982,600 shares held by IVP XI; 317,400 shares held by IVP XI KG; and 989,770 shares held by IVP XII. IVM XI serves as the sole general partner of IVP XI and the sole managing limited partner of IVP XI KG, and has sole voting and investment control over the respective shares owned by IVP XI and IVP XI KG, and may be deemed to own beneficially the shares held by IVP XI and IVP XI KG. IVM XI however owns no securities of the Issuer directly. IVM XII serves as the sole general partner of IVP XII, and has sole voting and investment control over the shares owned by IVP XII, and may be deemed to own beneficially the shares held by IVP XII. IVM XII however owns no securities of the Issuer directly. Chaffee, Dennis, Fogelsong, Harrick, Miller and Phelps are Managing Directors of IVM XI and share voting and dispositive power over the shares held by IVP XI and IVP XI KG, and may be deemed to own beneficially the shares held by IVP XI and IVP XI KG, however, they own no securities of the Issuer directly and they disclaim beneficial ownership of the shares held by IVP XI and IVP XI KG, except to the extent of their respective pecuniary interests therein. Chaffee, Fogelsong, Harrick, Miller and Phelps are Managing Directors of IVM XII and share voting and dispositive power over the shares held by IVP XII, and may be deemed to own beneficially the shares held by IVP XII, however, they own no securities of the Issuer directly and they disclaim beneficial ownership of the shares held by IVP XII, except to the extent of their respective pecuniary interests therein.

(3) This percentage is calculated based upon 32,706,972 shares of the Common Stock outstanding as of February 15, 2008 in the Issuer’s most recently filed 10-K as filed with the Securities and Exchange Commission on February 29, 2008.

Introductory Note: This Amendment No. 1 amends the statement on Schedule 13G filed with the Securities and Exchange Commission (the “Commission”) on June 26, 2006, and is being filed by Institutional Venture Partners XI, L.P., Institutional Venture Partners XI GmbH & Co. Beteiligungs KG, Institutional Venture Management XI, LLC, Institutional Venture Partners XII, L.P., Institutional Venture Management XII, LLC, Todd C. Chaffee, Reid W. Dennis, Norman A. Fogelsong, Stephen J. Harrick, J. Sanford Miller and Dennis B. Phelps, in respect of shares of Common Stock, par value $0.0001 per share (“Common Stock”), of Synchronoss Technologies, Inc., a Delaware corporation (the “Issuer”).

Item 1

(a)		Name of Issuer:		Synchronoss Technologies, Inc.
(b)		Address of Issuer’s
		Principal Executive Offices:		750 Route 202 South, Suite 600
				Bridgewater, New Jersey 08807

Item 2

(a)		Name of Reporting Persons Filing:
				Institutional Venture Partners XI, L.P. (“IVP XI”)
				Institutional Venture Partners XI GmbH & Co. Beteiligungs KG (“IVP XI KG”)
				Institutional Venture Management XI, LLC (“IVM XI”)
				Institutional Venture Partners XII, L.P. (“IVP XII”)
				Institutional Venture Management XII, LLC (“IVM XII”)
				Todd C. Chaffee (“Chaffee”)
				Reid W. Dennis (“Dennis”)
				Norman A. Fogelsong (“Fogelsong”)
				Stephen J. Harrick (“Harrick”)
				J. Sanford Miller (“Miller”)
				Dennis B. Phelps (“Phelps”)

(b)		Address of Principal Business Office:		c/o Institutional Venture Partners
				3000 Sand Hill Road, Building 2, Suite 250
				Menlo Park, California 94025

(c)		Citizenship:
				IVP XI		Delaware, United States of America
				IVP XI KG		Germany
				IVM XI		Delaware, United States of America
				IVP XII		Delaware, United States of America
				IVM XII		Delaware, United States of America
				Chaffee		United States of America
				Dennis		United States of America
				Fogelsong		United States of America
				Harrick		United States of America
				Miller		United States of America
				Phelps		United States of America

(d)		Title of Class of Securities:		Common Stock
(e)		CUSIP Number:		87157B 10 3

Item 3		Not applicable.

Item 4		Ownership.

The following information with respect to the ownership of the Common Stock by the Reporting Persons filing this Amendment No. 1 to the statement on Schedule 13G is provided as of March 4, 2008:

		Shares				Sole				Shared				Sole				Shared
		Held				Voting				Voting				Dispositive				Dispositive				Beneficial				Percentage
Reporting Persons		Directly				Power				Power				Power				Power				Ownership				of Class (2)
IVP XI			1,982,600				0				3,289,770				0				3,289,770				3,289,770				10.06	%
IVP XI KG			317,400				0				3,289,770				0				3,289,770				3,289,770				10.06	%
IVM XI (1)			0				0				3,289,770				0				3,289,770				3,289,770				10.06	%
IVP XII			989,770				0				3,289,770				0				3,289,770				3,289,770				10.06	%
IVM XII (1)			0				0				3,289,770				0				3,289,770				3,289,770				10.06	%
Chaffee (1)			0				0				3,289,770				0				3,289,770				3,289,770				10.06	%
Dennis (1)			0				0				2,300,000				0				2,300,000				2,300,000				7.03	%
Fogelsong (1)			0				0				3,289,770				0				3,289,770				3,289,770				10.06	%
Harrick (1)			0				0				3,289,770				0				3,289,770				3,289,770				10.06	%
Miller (1)			0				0				3,289,770				0				3,289,770				3,289,770				10.06	%
Phelps (1)			0				0				3,289,770				0				3,289,770				3,289,770				10.06	%

Item 5		Ownership of Five Percent or Less of a Class.

If this statement is being filed to report the fact that as of the date hereof, the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following:      o

Item 6		Ownership of More Than Five Percent on Behalf of Another Person.

		Not applicable.

Item 7		Identification and Classification of the Subsidiary which Acquired the Security Being Reported on by the Parent Holding Company.

		Not applicable.

Item 8		Identification and Classification of Members of the Group.

		Not applicable.

Item 9		Notice of Dissolution of Group.

		Not applicable.

Item 10		Certification.

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not geld for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in the attached Amendment No. 1 to the statement on Schedule 13G is true, complete and correct.

Dated: March 6, 2008

INSTITUTIONAL VENTURE PARTNERS XI, L.P.

By: Institutional Venture Management XI, LLC
Its: General Partner

By:		/s/ Norman A. Fogelsong
		Norman A. Fogelsong, Managing Director

INSTITUTIONAL VENTURE PARTNERS XI GmbH & CO. BETEILIGUNGS KG

By: Institutional Venture Management XI, LLC
Its: Managing Limited Partner

By:		/s/ Norman A. Fogelsong
		Norman A. Fogelsong, Managing Director

INSTITUTIONAL VENTURE MANAGEMENT XI, LLC

By:		/s/ Norman A. Fogelsong
		Norman A. Fogelsong, Managing Director

INSTITUTIONAL VENTURE PARTNERS XII, L.P.

By: Institutional Venture Management XII, LLC
Its: General Partner

By:		/s/ Norman A. Fogelsong
		Norman A. Fogelsong, Managing Director

INSTITUTIONAL VENTURE MANAGEMENT XII, LLC

By:		/s/ Norman A. Fogelsong
		Norman A. Fogelsong, Managing Director

/s/ Melanie Chladek                                                                
Melanie Chladek, Attorney-in-Fact for Todd C. Chaffee

/s/ Melanie Chladek                                                                
Melanie Chladek, Attorney-in-Fact for Reid W. Dennis

/s/ Melanie Chladek                                                                
Melanie Chladek, Attorney-in-Fact for Norman A. Fogelsong

/s/ Melanie Chladek                                                                
Melanie Chladek, Attorney-in-Fact for Stephen J. Harrick

/s/ Melanie Chladek                                                                
Melanie Chladek, Attorney-in-Fact for J. Sanford Miller

/s/ Melanie Chladek                                                                
Melanie Chladek, Attorney-in-Fact for Dennis B. Phelps

Exhibit(s):

A:		Joint Filing Statement

EXHIBIT A

JOINT FILING STATEMENT

We, the undersigned, hereby express our agreement that the attached Amendment No. 1 to the statement on Schedule 13G relating to the Common Stock of Synchronoss Technologies, Inc. is filed on behalf of each of us.

Dated: March 6, 2008

INSTITUTIONAL VENTURE PARTNERS XI, L.P.

By: Institutional Venture Management XI, LLC
Its: General Partner

By:		/s/ Norman A. Fogelsong
		Norman A. Fogelsong, Managing Director

INSTITUTIONAL VENTURE PARTNERS XI GmbH & CO. BETEILIGUNGS KG

By: Institutional Venture Management XI, LLC
Its: Managing Limited Partner

By:		/s/ Norman A. Fogelsong
		Norman A. Fogelsong, Managing Director

INSTITUTIONAL VENTURE MANAGEMENT XI, LLC

By:		/s/ Norman A. Fogelsong
		Norman A. Fogelsong, Managing Director

INSTITUTIONAL VENTURE PARTNERS XII, L.P.

By: Institutional Venture Management XII, LLC
Its: General Partner

By:		/s/ Norman A. Fogelsong
		Norman A. Fogelsong, Managing Director

INSTITUTIONAL VENTURE MANAGEMENT XII, LLC

By:		/s/ Norman A. Fogelsong
		Norman A. Fogelsong, Managing Director

/s/ Melanie Chladek                                                                
Melanie Chladek, Attorney-in-Fact for Todd C. Chaffee

/s/ Melanie Chladek                                                                
Melanie Chladek, Attorney-in-Fact for Reid W. Dennis

/s/ Melanie Chladek                                                                
Melanie Chladek, Attorney-in-Fact for Norman A. Fogelsong

/s/ Melanie Chladek                                                                
Melanie Chladek, Attorney-in-Fact for Stephen J. Harrick

/s/ Melanie Chladek                                                                
Melanie Chladek, Attorney-in-Fact for J. Sanford Miller

/s/ Melanie Chladek                                                                
Melanie Chladek, Attorney-in-Fact for Dennis B. Phelps